Free Mock Exam Practice

Correct Answer: A. Accuracy

Why A is correct:
This question falls under Measurement (measurement quality). Accuracy refers to how closely the recorded value matches the true value of the behavior. Because the stem asks whether recorded behavior represents the true behavior, it is directly testing accuracy.

Why others are wrong:

• Validity = whether you are measuring what you intended (the right target), not closeness to the true value.
• Reliability = consistency/agreement (e.g., between observers); you can be consistent and still be wrong.
• Diversity is not a measurement-quality term in this context.

Exam tip: If you see “true/actual value,” “represents the true behavior,” or “correctness,” think Accuracy.
Common trap: High IOA (reliability) does not guarantee accuracy—two observers can agree and still be off from the true value.

Key terms to review: Accuracy, true value/ground truth, reliability (IOA), validity.

Correct Answer: A. Metaphorical extension

Why A is correct:
This tests semantic/meaning extension. “Burning” is used for pain because the sensation is similar to heat/fire → metaphorical (similarity-based).

Why others are wrong:

• Metonymical extension: based on association (e.g., “The White House” = the government), not similarity.
• Solistic extension: private/odd personal usage; “burning pain” is common.
• Generic extension: overgeneralizing one word to many items (e.g., all animals = “dog”); not the case here.

Exam tip:
Similarity (“feels like”) = Metaphor; Association (“stands for”) = Metonymy.

Common trap: Confusing metaphor (similarity-based) with metonymy (association-based).

Key terms to review: Metaphorical extension, metonymical extension, similarity vs association, semantic/lexical extension.

Correct Answer: C. Conjunctive

Why C is correct:
This is a conjunctive schedule because two requirements must both be met for the consequence to occur: a ratio requirement (80 squats) AND a time requirement (5 minutes). Conjunctive = “AND rule”.

Why others are wrong:

• Mixed: alternates different schedules without a signal, but it’s not “must meet both.”
• Chained: a sequence of steps where each step produces a cue for the next; not described here.
• Concurrent: two schedules available at the same time for different responses (choice situation), not an “AND” requirement.

Exam tip:
If you see “must complete X responses AND wait Y time” → Conjunctive (AND).
Quick contrast: Concurrent = choose between options; Conjunctive = meet both conditions.

Common trap: Picking concurrent just because two “things” are mentioned—concurrent is choice between schedules, not “must meet both.”

Key terms to review: Conjunctive schedule, ratio requirement, time requirement, concurrent schedules, chained vs mixed.

Correct Answer: D. Respondent conditioning

Why D is correct:
This is respondent (classical/Pavlovian) conditioning: the word “pepper” (previously neutral stimulus) became associated with getting ill (unconditioned stimulus), so hearing “pepper” now elicits gagging (conditioned response).

Why others are wrong:

• S-O-R: a conceptual model, not the learning process being illustrated.
• Pavlovian behaviorism: a broader label/approach; the specific process here is respondent conditioning.
• Operant conditioning: behavior changes due to consequences; here it’s an elicited reflex from a stimulus association, not reinforcement/punishment.

Exam tip:
If the behavior is automatic/reflexive (gagging, salivating, nausea, startle) triggered by a stimulus due to pairing → think Respondent conditioning.

Common trap: Calling it operant because it’s a “behavior”—gagging here is elicited/respondent, not consequence-shaped.
Key terms to review: Respondent conditioning, CS/US/CR/UR, stimulus-stimulus pairing, reflexive behavior.

Correct Answer: A. Models

Why A is correct:
Using a range of models (different people) helps imitation skills generalize—the client learns to imitate the behavior across different demonstrators, not just one specific trainer.

Why others are wrong:

• Prompts: can help acquisition, but “range of” is not the key driver of generalization in imitation training.
• Reinforcers: important for motivation, but varying reinforcers isn’t what defines effective imitation training.
• Settings: helps generalization too, but in imitation training the most direct variable to vary is who models the behavior.

Exam tip:
For imitation/generalization questions, look for varying the model (multiple people) to avoid “only imitates one person” as a common trap.

Common trap: Choosing reinforcers because reinforcement matters—this question is about generalization of imitation, which is driven by varying models.

Key terms to review: Imitation training, multiple exemplars, generalization, model as stimulus, programming for generalization.

Correct Answer: A. Implement discrimination training for “help” requests

Why A is correct:
This question falls under Verbal Behavior (mands) + Stimulus Control/Generalization. The child’s “help” mand has overgeneralized—it is occurring in conditions where it should not (easy tasks). The next step is to teach discrimination so the child requests help in the presence of the appropriate antecedent conditions (e.g., task difficulty cues) and not when tasks are easy.

Why others are wrong:
B. Introduce extinction for all help mands = This is too broad and risks suppressing an appropriate, functional mand. The issue is when to request help, not eliminating help requests entirely.
C. Increase reinforcement for independent responses = This may support independence, but it does not directly teach the SD/SΔ discrimination for appropriate vs inappropriate help mands.
D. Add a response cost procedure = Punishment-based and not the best next step when the core problem is stimulus control (overgeneralization).

Exam tip: If a response starts occurring in too many situations after generalization probes, the fix is usually discrimination training (SD vs SΔ), not extinction or punishment.

Common trap: Choosing extinction because the behavior is “too frequent.” Overuse is often a stimulus control problem, so you teach when it is appropriate rather than suppressing the skill.

Correct Answer: A. The ethical use of punishment procedures

Why The ethical use of punishment procedures is correct:
This question falls under ethics and punishment procedures. Response cost is a punishment-based intervention. The emergence of task avoidance indicates a negative side effect of punishment. When punishment produces avoidance or withdrawal from instructional activities, the BCBA’s primary responsibility is to evaluate whether the punishment procedure is being used ethically, including whether its risks outweigh its benefits and whether modification or discontinuation is warranted.

Why others are wrong:
The schedule of token delivery focuses on reinforcement parameters and does not address ethical concerns related to punishment side effects.
The client’s motivation for task completion describes a behavioral mechanism, but the question asks for the primary professional consideration when punishment causes harm.
The generalization strategy is not relevant, as no generalization issue is described.

Exam tip:
When a punishment procedure leads to avoidance, fear, or withdrawal, BCBA exam questions prioritize ethical evaluation of the punishment procedure.

Common trap:
Choosing “motivation” because avoidance is observed. On the BCBA exam, punishment side effects cue ethics-based decision making before technical optimization.

Key terms to review:
Response cost, punishment, punishment side effects, ethical use of punishment procedures, avoidance behavior, risk–benefit analysis.

Correct Answer: A. An abolishing operation

Why An abolishing operation is correct:
This question falls under Motivating Operations (MO). Providing noncontingent access to preferred sensory items before transitions reduces the value of the reinforcement that previously maintained elopement. By decreasing the effectiveness of the reinforcer, the intervention functions as an abolishing operation, which results in a decrease in elopement.

Why others are wrong:
An establishing operation would increase the value of a reinforcer and make elopement more likely, not less.
A discriminative stimulus signals the availability of reinforcement contingent on a specific response, but this intervention alters motivation rather than signaling reinforcement.
A contingency contract is a written agreement specifying behavioral expectations and consequences, which is not described here.

Exam tip:
If access to a reinforcer is given freely before problem behavior and the behavior decreases, the function is likely an abolishing operation.

Common trap:
Choosing discriminative stimulus because the intervention occurs before transitions. Timing alone does not make something an SD; the key is whether reinforcement value is changed.

Key terms to review:
Abolishing operation, establishing operation, motivating operations, noncontingent reinforcement (NCR), elopement, sensory reinforcement.

Correct Answer: A. Experimentation

Why Experimentation is correct:
This question falls under Attitudes of Science in ABA. Experimentation refers to the systematic manipulation of an independent variable to observe its effect on a dependent variable. The stem explicitly states that the BCBA manipulates a presumed functional variable to observe changes in behavior, which is the defining feature of experimentation.

Why others are wrong:
Empiricism refers to reliance on objective observation and measurement, but it does not require manipulation of variables.
Replication involves repeating findings to demonstrate reliability and consistency, which is not described here.
Philosophic doubt involves maintaining skepticism and willingness to revise conclusions, not active variable manipulation.

Exam tip:
If the stem includes words like manipulates, tests, or alters a variable to observe change, the correct answer is almost always Experimentation.

Common trap:
Choosing empiricism because data are being observed. Observation alone is empiricism; manipulation to test effects is experimentation.

Key terms to review:
Experimentation, attitudes of science, independent variable, dependent variable, empiricism, replication, philosophic doubt.

Correct Answer: A. Functional analysis

Why Functional analysis is correct:
This question falls under Functional Behavior Assessment (FBA). A functional analysis is the only assessment method that experimentally manipulates antecedents and consequences to confirm a hypothesized function of behavior. The stem explicitly states “to confirm this hypothesis,” which requires demonstrating a functional relation, not just observing correlations.

Why others are wrong:
Descriptive assessment involves observing behavior in natural settings and identifying correlations, but it cannot confirm causation.
Scatterplot recording identifies temporal patterns of behavior across time periods, not behavioral function.
ABC narrative provides descriptive information about antecedents and consequences but does not involve experimental manipulation.

Exam tip:
If the question says confirm, test, or demonstrate function, the correct answer is almost always Functional analysis.

Common trap:
Choosing descriptive assessment because caregiver behavior is mentioned. Observational methods suggest hypotheses; functional analysis confirms them.

Key terms to review:
Functional analysis, functional behavior assessment, experimental manipulation, descriptive assessment, ABC data, behavioral function.

Correct Answer: A. Contiguity

Why Contiguity is correct:
This question falls under reinforcement parameters. Contiguity refers to the temporal closeness between a response and its consequence. Delivering reinforcement immediately after the target response is completed strengthens the association between the behavior and the reinforcer, ensuring that the correct response—not a partial or incorrect response—is reinforced.

Why others are wrong:
Magnitude refers to the size or amount of reinforcement, not the timing of delivery.
Response effort concerns how much work is required to emit a behavior and is unrelated to when reinforcement is delivered.
Response cost is a punishment procedure involving the removal of a reinforcer and does not apply to reinforcement timing.

Exam tip:
If the stem emphasizes immediate reinforcement, timing, or delivering reinforcement after completion, the tested concept is almost always contiguity.

Common trap:
Choosing magnitude because reinforcement effectiveness is mentioned. Effectiveness due to timing specifically tests contiguity, not size or quality.

Key terms to review:
Contiguity, reinforcement parameters, immediacy of reinforcement, delayed reinforcement, adventitious reinforcement.

Correct Answer: A. Internal validity

Why Internal validity is correct:
This question falls under single-case experimental design. In a multiple baseline design, experimental control is demonstrated by staggered behavior change across tiers when the intervention is introduced at different times. If behavior changes simultaneously across all settings after intervention in only one setting, alternative explanations (e.g., history, generalization, reactivity) cannot be ruled out. This directly threatens internal validity, or the confidence that the intervention caused the behavior change.

Why others are wrong:
External validity concerns generalization of findings to other settings or populations, not whether the intervention caused the change.
Reliability refers to consistency and accuracy of measurement, such as IOA, which is not described here.
Social validity addresses the acceptability and importance of goals, procedures, or outcomes, not experimental control.

Exam tip:
If a design fails to rule out alternative explanations for behavior change, the issue is almost always internal validity.

Common trap:
Choosing external validity because multiple settings are mentioned. Multiple settings are part of the design, but the question is about causal control, not generalization.

Key terms to review:
Multiple baseline design, internal validity, experimental control, staggered intervention, threats to validity, history effects.

Correct Answer: B. Reduce exchange delay

Why Reduce exchange delay is correct:
This question targets token economy design and reinforcement effectiveness. Tokens function as conditioned reinforcers, and their effectiveness depends on how closely they are paired with backup reinforcers. When exchange opportunities occur only at the end of the day, the delay to reinforcement is too long, weakening the conditioned reinforcing value of tokens. Reducing the exchange delay (e.g., adding mid-day or more frequent exchanges) is the first-line adjustment to restore motivation.

Why others are wrong:
Increase token value does not address the core issue of delayed reinforcement; even high-value tokens lose effectiveness with long delays.
Adding bonus tokens adds complexity without fixing the weak token–backup pairing.
Implementing a fixed ratio exchange changes the structure of earning, not the timing of reinforcement, which is the actual problem here.

Exam tip:
When motivation drops in a token system, check exchange frequency and delay before changing token value or ratios.

Common trap:
Choosing “increase token value” because motivation is low. On the BCBA exam, delay to reinforcement beats magnitude as the first variable to fix.

Key terms to review:
Token economy, conditioned reinforcer, exchange delay, reinforcement delay, backup reinforcer, motivation operations.

Correct Answer: D. Discriminative stimulus control

Why Discriminative stimulus control is correct:
This question assesses stimulus control and generalization. The client’s correct responding occurs only in the presence of the BCBA, indicating that the BCBA has become an SD (discriminative stimulus) signaling reinforcement availability for correct responses. When the RBT is present, that SD is absent, so the behavior does not occur at the same level. This pattern reflects discriminative stimulus control, not a general performance issue.

Why others are wrong:
Stimulus control is too broad; the question specifically describes control by a particular stimulus (the BCBA), which is discriminative stimulus control.
Behavioral contrast refers to changes in response rates across different conditions due to changes in reinforcement in one condition, which is not described here.
Generalization failure describes the outcome (behavior not transferring), but the mechanism explaining why is discriminative stimulus control.

Exam tip:
If behavior occurs only with one person, setting, or cue, think SD control before selecting generalization failure.

Common trap:
Choosing “generalization failure” because the behavior doesn’t transfer. On BCBA exams, ask why it doesn’t transfer—the answer is often discriminative stimulus control.

Key terms to review:
Discriminative stimulus (SD), stimulus control, person-specific responding, generalization, stimulus fading.

Correct Answer: A. Overestimation of behavior occurrence

Why Overestimation of behavior occurrence is correct:
This question tests measurement systems and their inherent biases. Partial interval recording scores the behavior as occurring if it happens at any point during the interval, regardless of how brief the response is. When a behavior occurs at high frequency and short duration, it is very likely to be observed at least once in many intervals, leading to an inflated estimate of how much behavior actually occurred. Therefore, partial interval recording tends to overestimate behavior occurrence under these conditions.

Why others are wrong:
Underestimation of response duration is more characteristic of momentary time sampling, not partial interval recording.
Low interobserver agreement relates to observer consistency, which is not described in the question.
Reactivity refers to behavior change due to being observed, not a systematic bias of the measurement system.

Exam tip:
If you see partial interval recording + brief, frequent behaviors, think overestimation.

Common trap:
Confusing partial interval recording with momentary time sampling. On the BCBA exam, partial interval = overestimation, whole interval = underestimation.

Key terms to review:
Partial interval recording, whole interval recording, momentary time sampling, measurement bias, overestimation, response duration.

Correct Answer: B. Extinction burst

Why Extinction burst is correct:
This question targets extinction-related side effects. An extinction burst is characterized by a temporary increase in the frequency, intensity, or variability of a behavior immediately after extinction is implemented, followed by a decrease if extinction is implemented consistently. The key features in the stem are immediate increase and eventual reduction, which precisely define an extinction burst.

Why others are wrong:
Spontaneous recovery refers to the reappearance of a previously extinguished behavior after a delay, not immediately after extinction begins.
Resurgence involves the reemergence of previously reinforced alternative behaviors, not an increase in the target behavior itself.
Behavioral contrast refers to changes in behavior in one condition due to changes in reinforcement in another condition, which is not described here.

Exam tip:
If behavior gets worse before it gets better right after extinction starts, the answer is almost always extinction burst.

Common trap:
Confusing extinction burst with spontaneous recovery. Timing matters: immediate = extinction burst, after a delay = spontaneous recovery.

Key terms to review:
Extinction, extinction burst, spontaneous recovery, resurgence, side effects of extinction.

Correct Answer: A. Change to a variable interval schedule

Why Change to a variable interval schedule is correct:
This question tests schedule effects on response patterns. Fixed interval (FI) schedules characteristically produce a scalloped pattern, with low responding after reinforcement and increased responding as the interval approaches its end. To promote steady, consistent responding, the schedule should be changed to a variable interval (VI) schedule, which reinforces the first response after unpredictable time intervals and typically produces moderate, steady rates of responding without scalloping.

Why others are wrong:
Adding a DRO component targets reduction of problem behavior, not improving response patterns under an FI schedule.
Introducing extinction would remove reinforcement altogether and is not appropriate when the goal is to maintain on-task behavior.
Decreasing the interval duration would shorten the scallop but would not eliminate the scalloped pattern, as it is inherent to fixed interval schedules.

Exam tip:
If you see FI + scalloping, the fix is almost always switch to VI.

Common trap:
Choosing “decrease the interval duration.” This reduces waiting time but does not change the fundamental FI response pattern.

Key terms to review:
Fixed interval (FI), variable interval (VI), scalloped responding, schedule effects, steady responding.

Correct Answer: B. Technological

Why Technological is correct:
This question assesses the dimensions of ABA. The technological dimension requires that procedures be described with sufficient detail and clarity so that another practitioner can replicate the intervention exactly as written. The term “moderate level of attention” is vague and subjective, making it unclear how to implement the procedure. Asking the author to define “moderate” directly addresses a lack of technological precision.

Why others are wrong:
Analytical refers to demonstrating a functional relationship between variables, not clarity of description.
Conceptually systematic focuses on linking procedures to behavioral principles, not operational detail.
Effective concerns whether the intervention produces meaningful behavior change, which is not the issue here.

Exam tip:
If a plan uses words like “appropriate,” “moderate,” “as needed,” or “when possible,” think Technological.

Common trap:
Choosing conceptually systematic because attention is mentioned. The issue is not why attention is used, but how clearly it is described.

Key terms to review:
Technological dimension, operational definitions, treatment integrity, procedural clarity, ABA dimensions.

Correct Answer: B. Use total task presentation

Why Use total task presentation is correct:
This question targets chaining procedures. The client can perform each individual step independently, indicating that the component responses are already mastered. The problem lies in linking the steps together in the correct sequence. Total task presentation requires the learner to attempt all steps of the chain in order during each teaching opportunity, with prompts provided as needed. This approach directly addresses difficulties with sequencing and fluency across the entire chain.

Why others are wrong:
Backward chaining is most useful when the learner struggles with earlier steps or motivation tied to the terminal reinforcer, not when all steps are already mastered independently.
Thinning reinforcement for mastered steps may actually reduce motivation and does not address sequencing deficits.
Response shaping is used to build new topographies, not to connect already mastered chain steps.

Exam tip:
If all steps are mastered but the chain falls apart, think total task presentation.

Common trap:
Choosing backward chaining just because it’s a chaining procedure. Always ask whether the issue is skill acquisition of steps or integration of steps into a sequence.

Key terms to review:
Chaining, total task presentation, backward chaining, task analysis, sequencing, skill acquisition.

Correct Answer: C. Do No Harm

Why Do No Harm is correct:
This question assesses ethical considerations in ABA practice. Although the interdependent group contingency increases overall performance, it has produced unintended negative side effects, namely peer pressure and anxiety in some students. The ethical principle of Do No Harm (nonmaleficence) requires behavior analysts to identify, monitor, and minimize potential harm, even when an intervention is otherwise effective. The presence of emotional distress makes Do No Harm the most directly relevant principle.

Why others are wrong:
Beneficence focuses on promoting client benefit, but the question emphasizes harm occurring, not lack of benefit.
Least Restrictive Alternative concerns selecting the least intrusive intervention, which is not the primary issue described.
Social validity relates to acceptability of goals, procedures, and outcomes, but the core concern here is emotional harm, not stakeholder preference.

Exam tip:
If an intervention is effective but causes distress, anxiety, or social harm, think Do No Harm first.

Common trap:
Choosing social validity because peers are unhappy. On the BCBA exam, emotional or psychological harm = Do No Harm, even in group-based interventions.

Key terms to review:
Do No Harm, beneficence, interdependent group contingency, ethical side effects, client welfare, nonmaleficence.